It may happen, but it most likely wouldn't be a person to invest in a large amount, it may be a company who decides to use Bitcoins. If Ebay, Amazon (have bitcoin-amazon card feature but not direct), PayPal or even Google decides to push Bitcoin and use it as a payment option, that itself it a good enough 'investment' and it may encourage more users to buy it.
This will give Bitcoin more recognition and more uses, which would bring the price up, so you are right, there is a possibility, but we would never know what is happening right now, right?
I agree with this.
more investors investing in bitcoin doesn't change anything and I don't think we can expect 10K and above prices with just more speculators. these people only want profit and they will dump bitcoin after a rise and short it on the way down for more $$$ profit.
but with more real adoption, and real usage such as what this comments suggested, we get more demand which will stay around and when price reaches a higher level (even 10K) it won't come down because this demand is not going anywhere.